respiratory system !!!

how does the process of taking a breath start?

• You breath in

• The brain signals the diaphragm and other muscles to tighten

• The heart pumps air into the lungs
• Air is exhaled first, then you inhalation

the central organ in the respiratory system is the

(a)  

Lung are ...

• Giant balloons expanding

• Hard and tough like a wall

• fragile like glass

• large and spongy

What do the ribs do?

• Protect the lungs

• Assist in hearing
• Aid in vision
• Help in digestion

Why is the right lung bigger than the left because...

• The right lung is more efficient

• The left lung has to make space for the heart.
• The left lung is used more frequently
• The right lung is closer to the heart

The right lung has (a)   lobes

The left lung has (a)   lobes

What are tiny hair in the nose that traps germs called?

• mucus
• flagella
• villi
• cilia

After taking a breath the air goes down the ...

• trachea
• bronchi
• esophagus
• lungs

After the air travels through the windpipe, or trachea it branches off to ...

• esophagus
• alveoli
• lungs
• bronchi